发明授权
- 专利标题： Navigation apparatus, navigation system and route search method
- 专利标题（中）： 导航仪，导航系统和路线搜索方法
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申请号： US11730136申请日： 2007-03-29
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公开(公告)号： US07908081B2公开(公告)日： 2011-03-15
- 发明人: Akio Sumizawa , Takayuki Sakakibara , Kenichi Maruta
- 申请人： Akio Sumizawa , Takayuki Sakakibara , Kenichi Maruta
- 申请人地址： JP Zama-shi
- 专利权人： Xanavi Informatics Corporation
- 当前专利权人： Xanavi Informatics Corporation
- 当前专利权人地址： JP Zama-shi
- 代理机构： Crowell & Moring LLP
- 优先权： JP2006-093365 20060330
- 主分类号： G01C21/30
- IPC分类号： G01C21/30 ; G01C21/32
摘要：
This navigation apparatus includes a road setting unit that sets a road to be traversed between a departure point and a destination, the road being constituted by links for each of which a predetermined link cost is set, a replacement unit that replaces the links constituting the road to be traversed that has been set by the road setting unit, with a virtual link whose link cost is set to be smaller than the total of the link costs of the links for the road to be traversed, and a route search unit that searches for a recommended route from the departure point to the destination, based upon link costs set for links that constitute roads other than the road to be traversed, and the link cost set for the virtual link with which the road to be traversed has been replaced by the replacement unit.
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